Boiler-tube cleaner.



BEL

E. METTLER.

BOILER TUBE CLEANER.

APPLICATION FILED 11.111.14.1904.

PATENTBD NOV. 20, 1906.

Eugene Mettler @woef/nto@ @IHM/Wurz,

UNrrnDgsTATns PATENT" OFFICE.

EUGENE METTLER, OF INDIANAIOLIS, INDIANA, ASSIGNOR TO LAGONDA MANUFACTURING COMPANY, OF SPRINGFIELD, OHIO, A CORPORATION OF OHIO.

BoiLER-TUBE CLEANER.

Specification of Letters Patent.

Patented Nov. 20, 1906.

Application tiled March 14,1904. Serial No. 198,011.

To all whom it may concern:

Beit known that I, EUGENE MnTTLER, a citizen of the United States, residing at Indiana olis, in the county of Marion and State 'of In iana, have invented certain new and useful Improvements in Boiler-Tube Cleaners, of which the following is a specification.

'The object of my invention is to produce a cleaning-tool for the water-tubes of watert-ube'boiler's, the construction being such that the entire length of each cutting-arm inaylie so' as to bring each cutter-wheel into action vide means b 'wheels on eac independent of the thickness of the scale.

In the drawings, 10 indicates a suitable motor-casing adapted to be secured tothe discharge end of a suitable supply-hose 11. Arranged in casing 10 is a usual turbine 12, to which the shaft 13 of my improved cutterhead is attached through a universal joint, if desired. Secured to siaft 13 is a head 14, provided on its outer face with a series oi radial slots 15, each of vhich is provided with a pair of o posed shelves or shoulders 16.` Mating witii head 14 and pinned thereto is a similar head 14', provided with simil ar slots 15', having shoulders 16. Mounted in and projecting through cach pair of slots 15 15 is a tubular bearing 17, provided with a cross-journal 18, which rests upon and journals between the shelves 16 16. Journaled in each bearing 17 is a shaft 19. Said shaft is polygonal at its outer end and is adapted to receive a plurality of cutters 20, which are held thereon by a suitable nut 2 1.

The polygonal axial opening in each cutter is so arranged that the teeth of adjacent cutters will be staggered and at all times remain in this fixed re ation.

Each shaft 19 is removably held in its t'ubular bearing 17 by any suitable means,

such as a nut 22, and the head '14 is removably held in place by a nut 23 on shaft 13.

i` ing radial slots, each slot having opposed l In operation the rotation of the turbine rotates t e heads 14 14 and the cutters 20 are thrown out against the wall of a tube. The tubular bearings 17 are free to move bodily radially and also to swing on the trunnions 1S, and the shafts 19 are also free to rotate. As a consequence, all the cutters of each shaft will be brought into action irrespective of the thickness of the scale.

The cutters may be rotatable on the shafts 19; butI prefer to fix them on the shaft, as described, with the teeth of adjacent cutters staggered, for the reason that a better chipping action on the scale is had, the scale being broken in to finer pieces.

It will be noticed that the several parts may be taken apart, new pieces substituted, and the tool reassembled with great ease.

I am aware that in the atent to Henry F. lVeinland, No. 789,192, ated May 9, 1905, for improvements in boiler-tube cleaners, and issued to the Lagonda Manufacturing Company, my assignee of this present invention, there is shown an arm capable of radial movement and mounted on trunnions but in such case the arm extends to both sides of the head-that is, to the rear and to the front--and both ends of the arm carry cutters. I wish to be understood as disclaiming a construction wherein the work of the cutters on oneend of the arm is controlled or modified by the presence of the cutters on the other end of the arm. In my organization the working portion of the arm is not distributed partly on the forward and partly on the rear side of the head, but is located and operates wholly on one side of the head, and thc work of the cutters so placed is not modified or controlled by the resence of cutters elsewhere or to the rear liiead on the arm, as in said patent.

I claim as my invention- 1 In a tube-cleaner, a rotatable head havguiding-surfaces, lan arm arranged in each slot with trunnions bearing on said guidingsurfaces, upon wlnch trunnions said-arm 1s pivoted, and cutters carried by each arm, said head being divided into two separable parts in a plane transverse to its axis of rotation and lying between the guiding-surfaces, substantially as described.

2. In a tube-cleaner, the combination',with

suitable rotating means,o'f a shaft carrying a head having radial slots each with a pair of opposed radial shelves therein, a tubular bearing arranged in each slot With trunnions bearing on said shelves and upon which said bearing is pivoted, a shaft journaled in each tubular bearing, and cutters carried by said shaft.

ln a tube-cleaner, the combinationof a shaft-carrying head having radial slots each with a air of opposed radial shelves therein, a tubu ar bearing arranged in each slot with trunnions bearing on said shelves and upon which said bearing is pivoted, a shaft journaled in each tubular bearing, and cutters carried by said shaft.

4v. In a tube-cleaner, the combination,with

suitable rotatinv means, of a shaft carrying a head having radial slots each with a pair of opposed radial shelves therein, a tubular bearing arranged in ,each slot with trunnions bearing on said shelves and upon which said' 

